Answer:
4x+4x+42+2x-12=180 Degrees (Angle Sum of a Triangle)
10x+30=180
10x=150
x=15
Step-by-step explanation:
Hope this helps! You will always be forgiven if you change. :)
Not sure what algebra tiles are
not sure how to absolutely prove
I can prove it works at least most of the time by subsitute ing number for x
remember that 0,1,2 have special properties and are not very good for subsituting so
try 4
4+8(4)=4(2(4)+1)
true or false?
4+8(4)=4(2(4)+1)
multipily
4+32=4(8+1)
36=4(9)
36=36
this is treu at least for the number 4
another way is to believe in the distributive property where
a(b+c)=ab+ac so then
4(2x+1)=4(2x)+4(1)=8x+4=4+8x
Answer:
Question 9:
The product is irrational
Question 10:
20
10
Step-by-step explanation:
You graph slope by going up and over based on what number you have as the slope. The starting point is the y intercept
